3 added 169 characters in body
source | link

Mathematica, 127 bytes

Select[FromDigits/@Select[Tuples[{0,9},c=#],Count[#,9]==1||Union@Differences@Flatten@Position[#,9]=={1}&],IntegerQ[#/c]&][[1]]&


Input

[17]

Output

9999999999999999

here are the first 20 terms

{9, 90, 9, 900, 90, 90, 999999, 9000, 9, 90, 99, 900, 999999, 9999990, 90, 90000, 9999999999999999, 90, 999999999999999999, 900}

Mathematica, 127 bytes

Select[FromDigits/@Select[Tuples[{0,9},c=#],Count[#,9]==1||Union@Differences@Flatten@Position[#,9]=={1}&],IntegerQ[#/c]&][[1]]&


Input

[17]

Output

9999999999999999

Mathematica, 127 bytes

Select[FromDigits/@Select[Tuples[{0,9},c=#],Count[#,9]==1||Union@Differences@Flatten@Position[#,9]=={1}&],IntegerQ[#/c]&][[1]]&


Input

[17]

Output

9999999999999999

here are the first 20 terms

{9, 90, 9, 900, 90, 90, 999999, 9000, 9, 90, 99, 900, 999999, 9999990, 90, 90000, 9999999999999999, 90, 999999999999999999, 900}

2 added 59 characters in body
source | link

Mathematica, 127 bytes

Select[FromDigits/@Select[Tuples[{0,9},c=#],Count[#,9]==1||Union@Differences@Flatten@Position[#,9]=={1}&],IntegerQ[#/c]&][[1]]&


Input

[17]

Output

9999999999999999

Mathematica, 127 bytes

Select[FromDigits/@Select[Tuples[{0,9},c=#],Count[#,9]==1||Union@Differences@Flatten@Position[#,9]=={1}&],IntegerQ[#/c]&][[1]]&

Mathematica, 127 bytes

Select[FromDigits/@Select[Tuples[{0,9},c=#],Count[#,9]==1||Union@Differences@Flatten@Position[#,9]=={1}&],IntegerQ[#/c]&][[1]]&


Input

[17]

Output

9999999999999999

1
source | link

Mathematica, 127 bytes

Select[FromDigits/@Select[Tuples[{0,9},c=#],Count[#,9]==1||Union@Differences@Flatten@Position[#,9]=={1}&],IntegerQ[#/c]&][[1]]&